4k0k

Crystal structure of the Thermus thermophilus 30S ribosomal subunit complexed with a serine-ASL and mRNA containing a stop codon

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

30S ribosomal protein S2

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS2_THET8
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–235； UniProt 7–241

30S ribosomal protein S3

OrganismNot specified

UniProt P80372

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS3_THET8
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–207； UniProt 2–208

30S ribosomal protein S4

OrganismNot specified

UniProt P80373

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS4_THET8
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 1–208； UniProt 2–209

30S ribosomal protein S5

OrganismNot specified

UniProt Q5SHQ5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS5_THET8
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E； PDBConstruct 1–151； UniProt 5–155

30S ribosomal protein S6

OrganismNot specified

UniProt Q5SLP8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS6_THET8
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 1–101； UniProt 1–101

30S ribosomal protein S7

OrganismNot specified

UniProt P17291

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS7_THET8
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain G； PDBConstruct 1–155； UniProt 2–156

30S ribosomal protein S8

OrganismNot specified

UniProt Q5SHQ2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS8_THET8
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain H； PDBConstruct 1–138； UniProt 1–138

30S ribosomal protein S9

OrganismNot specified

UniProt P80374

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS9_THET8
Isoform	—
PDB entities	9
Chains and sequence ranges	Author chain I； PDBConstruct 1–127； UniProt 2–128

30S ribosomal protein S10

OrganismNot specified

UniProt Q5SHN7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS10_THET8
Isoform	—
PDB entities	10
Chains and sequence ranges	Author chain J； PDBConstruct 1–99； UniProt 3–101

30S ribosomal protein S11

OrganismNot specified

UniProt P80376

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS11_THET8
Isoform	—
PDB entities	11
Chains and sequence ranges	Author chain K； PDBConstruct 1–119； UniProt 11–129

30S ribosomal protein S12

OrganismNot specified

UniProt Q5SHN3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS12_THET8
Isoform	—
PDB entities	12
Chains and sequence ranges	Author chain L； PDBConstruct 1–126； UniProt 5–130

30S ribosomal protein S13

OrganismNot specified

UniProt P80377

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS13_THET8
Isoform	—
PDB entities	13
Chains and sequence ranges	Author chain M； PDBConstruct 1–121； UniProt 2–122

30S ribosomal protein S14

OrganismNot specified

UniProt Q5SHQ1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS14Z_THET8
Isoform	—
PDB entities	14
Chains and sequence ranges	Author chain N； PDBConstruct 1–60； UniProt 2–61

30S ribosomal protein S15

OrganismNot specified

UniProt Q5SJ76

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS15_THET8
Isoform	—
PDB entities	15
Chains and sequence ranges	Author chain O； PDBConstruct 1–88； UniProt 2–89

30S ribosomal protein S16

OrganismNot specified

UniProt Q5SJH3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS16_THET8
Isoform	—
PDB entities	16
Chains and sequence ranges	Author chain P； PDBConstruct 1–84； UniProt 1–84

30S ribosomal protein S17

OrganismNot specified

UniProt Q5SHP7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS17_THET8
Isoform	—
PDB entities	17
Chains and sequence ranges	Author chain Q； PDBConstruct 1–100； UniProt 2–101

30S ribosomal protein S18

OrganismNot specified

UniProt Q5SLQ0

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS18_THET8
Isoform	—
PDB entities	18
Chains and sequence ranges	Author chain R； PDBConstruct 1–70； UniProt 19–88

30S ribosomal protein S19

OrganismNot specified

UniProt Q5SHP2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S20 × 1 （P80380） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS19_THET8
Isoform	—
PDB entities	19
Chains and sequence ranges	Author chain S； PDBConstruct 1–79； UniProt 4–82

30S ribosomal protein S20

OrganismNot specified

UniProt P80380

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein THX × 1 （Q5SIH3） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS20_THET8
Isoform	—
PDB entities	20
Chains and sequence ranges	Author chain T； PDBConstruct 1–99； UniProt 8–106

30S ribosomal protein THX

OrganismNot specified

UniProt Q5SIH3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 20 RNA 3	16S ribosomal RNA × 1 30S ribosomal protein S2 × 1 （P80371） 30S ribosomal protein S3 × 1 （P80372） 30S ribosomal protein S4 × 1 （P80373） 30S ribosomal protein S5 × 1 （Q5SHQ5） 30S ribosomal protein S6 × 1 （Q5SLP8） 30S ribosomal protein S7 × 1 （P17291） 30S ribosomal protein S8 × 1 （Q5SHQ2） 30S ribosomal protein S9 × 1 （P80374） 30S ribosomal protein S10 × 1 （Q5SHN7） 30S ribosomal protein S11 × 1 （P80376） 30S ribosomal protein S12 × 1 （Q5SHN3） 30S ribosomal protein S13 × 1 （P80377） 30S ribosomal protein S14 × 1 （Q5SHQ1） 30S ribosomal protein S15 × 1 （Q5SJ76） 30S ribosomal protein S16 × 1 （Q5SJH3） 30S ribosomal protein S17 × 1 （Q5SHP7） 30S ribosomal protein S18 × 1 （Q5SLQ0） 30S ribosomal protein S19 × 1 （Q5SHP2） 30S ribosomal protein S20 × 1 （P80380） mRNA × 1 RNA-ASL × 1	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RSHX_THET8
Isoform	—
PDB entities	21
Chains and sequence ranges	Author chain U； PDBConstruct 1–25； UniProt 2–26

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	4k0k
Deposition date deposition_date	2013-04-04
Structure title title	Crystal structure of the Thermus thermophilus 30S ribosomal subunit complexed with a serine-ASL and mRNA containing a stop codon
Keywords keywords	ribosomal subunit, translation, RIBOSOME; RIBOSOME
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

4k0k__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4k0k__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4k0k__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	65.55 Å
Rg (electron density)	66.08 Å
Total Rg	66.13 Å
Atom count	51915
Residues	3918
Excluded volume	804290 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4k0k__assembly_1__model_1`	23-meric （23）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (23)

Entity 1 Entity 1 polymer

Description description	16S ribosomal RNA
Molecular weight formula_weight	492372.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	A
Atom count atom_count	51915

UGGAGAGUUUGAUCCUGGCUCAGGGUGAACGCUGGCGGCGUGCCUAAGACAUGCAAGUCGUGCGGGCCGCGGGAUUUUACUCCGUGGUCAGCGGCGGACGGGUGAGUAACGCGUGGGUGACCUACCCGGAAGAGGGGGACAACCCGGGGAAACUCGGGCUAAUCCCCCAUGUGGACCCGCCCCUUGGGGUGUGUCCAAAGGGCUUUGCCCGCUUCCGGAUGGGCCCGCGUCCCAUCAGCUAGUUGGUGGGGUAAUGGCCCACCAAGGCGACGACGGGUAGCCGGUCUGAGAGGAUGGCCGGCCACAGGGGCACUGAGACACGGGCCCCACUCCUACGGGAGGCAGCAGUUAGGAAUCUUCCGCAAUGGGCGCAAGCCUGACGGAGCGACGCCGCUUGGAGGAAGAAGCCCUUCGGGGUGUAAACUCCUGAACCCGGGACGAAACCCCCGACGAGGGGACUGACGGUACCGGGGUAAUAGCGCCGGCCAACUCCGUGCCAGCAGCCGCGGUAAUACGGAGGGCGCGAGCGUUACCCGGAUUCACUGGGCGUAAAGGGCGUGUAGGCGGCCUGGGGCGUCCCAUGUGAAAGACCACGGCUCAACCGUGGGGGAGCGUGGGAUACGCUCAGGCUAGACGGUGGGAGAGGGUGGUGGAAUUCCCGGAGUAGCGGUGAAAUGCGCAGAUACCGGGAGGAACGCCGAUGGCGAAGGCAGCCACCUGGUCCACCCGUGACGCUGAGGCGCGAAAGCGUGGGGAGCAAACCGGAUUAGAUACCCGGGUAGUCCACGCCCUAAACGAUGCGCGCUAGGUCUCUGGGUCUCCUGGGGGCCGAAGCUAACGCGUUAAGCGCGCCGCCUGGGGAGUACGGCCGCAAGGCUGAAACUCAAAGGAAUUGACGGGGGCCCGCACAAGCGGUGGAGCAUGUGGUUUAAUUCGAAGCAACGCGAAGAACCUUACCAGGCCUUGACAUGCUAGGGAACCCGGGUGAAAGCCUGGGGUGCCCCGCGAGGGGAGCCCUAGCACAGGUGCUGCAUGGCCGUCGUCAGCUCGUGCCGUGAGGUGUUGGGUUAAGUCCCGCAACGAGCGCAACCCCCGCCGUUAGUUGCCAGCGGUUCGGCCGGGCACUCUAACGGGACUGCCCGCGAAAGCGGGAGGAAGGAGGGGACGACGUCUGGUCAGCAUGGCCCUUACGGCCUGGGCGACACACGUGCUACAAUGCCCACUACAAAGCGAUGCCACCCGGCAACGGGGAGCUAAUCGCAAAAAGGUGGGCCCAGUUCGGAUUGGGGUCUGCAACCCGACCCCAUGAAGCCGGAAUCGCUAGUAAUCGCGGAUCAGCCAUGCCGCGGUGAAUACGUUCCCGGGCCUUGUACACACCGCCCGUCACGCCAUGGGAGCGGGCUCUACCCGAAGUCGCCGGGAGCCUACGGGCAGGCGCCGAGGGUAGGGCCCGUGACUGGGGCGAAGUCGUAACAAGGUAGCUGUACCGGAAGGUGCGGCUGGAUCACCUCCUUUCU

Entity 2 Entity 2 polymer

Description description	30S ribosomal protein S2
Molecular weight formula_weight	27116.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

VKELLEAGVHFGHERKRWNPKFARYIYAERNGIHIIDLQKTMEELERTFRFIEDLAMRGGTILFVGTKKQAQDIVRMEAERAGMPYVNQRWLGGMLTNFKTISQRVHRLEELEALFASPEIEERPKKEQVRLKHELERLQKYLSGFRLLKRLPDAIFVVDPTKEAIAVREARKLFIPVIALADTDSDPDLVDYIIPGNDDAIRSIQLILSRAVDLIIQARGGVVEPSPSYALVQE

Entity 3 Entity 3 polymer

Description description	30S ribosomal protein S3
Molecular weight formula_weight	22975.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

GNKIHPIGFRLGITRDWESRWYAGKKQYRHLLLEDQRIRGLLEKELYSAGLARVDIERAADNVAVTVHVAKPGVVIGRGGERIRVLREELAKLTGKNVALNVQEVQNPNLSAPLVAQRVAEQIERRFAVRRAIKQAVQRVMESGAKGAKVIVSGRIGGAEQARTEWAAQGRVPLHTLRANIDYGFALARTTYGVLGVKAYIFLGEVI

Entity 4 Entity 4 polymer

Description description	30S ribosomal protein S4
Molecular weight formula_weight	24242.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

GRYIGPVCRLCRREGVKLYLKGERCYSPKCAMERRPYPPGQHGQKRARRPSDYAVRLREKQKLRRIYGISERQFRNLFEEASKKKGVTGSVFLGLLESRLDNVVYRLGFAVSRRQARQLVRHGHITVNGRRVDLPSYRVRPGDEIAVAEKSRNLELIRQNLEAMKGRKVGPWLSLDVEGMKGKFLRLPDREDLALPVNEQLVIEFYSR

Entity 5 Entity 5 polymer

Description description	30S ribosomal protein S5
Molecular weight formula_weight	16460.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

DFEEKMILIRRTARMQAGGRRFRFGALVVVGDRQGRVGLGFGKAPEVPLAVQKAGYYARRNMVEVPLQNGTIPHEIEVEFGASKIVLKPAAPGTGVIAGAVPRAILELAGVTDILTKELGSRNPINIAYATMEALRQLRTKADVERLRKGE

Entity 6 Entity 6 polymer

Description description	30S ribosomal protein S6
Molecular weight formula_weight	11988.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MRRYEVNIVLNPNLDQSQLALEKEIIQRALENYGARVEKVEELGLRRLAYPIAKDPQGYFLWYQVEMPEDRVNDLARELRIRDNVRRVMVVKSQEPFLANA

Entity 7 Entity 7 polymer

Description description	30S ribosomal protein S7
Molecular weight formula_weight	17919.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G

ARRRRAEVRQLQPDLVYGDVLVTAFINKIMRDGKKNLAARIFYDACKIIQEKTGQEPLKVFKQAVENVKPRMEVRSRRVGGANYQVPMEVSPRRQQSLALRWLVQAANQRPERRAAVRIAHELMDAAEGKGGAVKKKEDVERMAEANRAYAHYRW

Entity 8 Entity 8 polymer

Description description	30S ribosomal protein S8
Molecular weight formula_weight	15868.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H

MLTDPIADMLTRIRNATRVYKESTDVPASRFKEEILRILAREGFIKGYERVDVDGKPYLRVYLKYGPRRQGPDPRPEQVIHHIRRISKPGRRVYVGVKEIPRVRRGLGIAILSTSKGVLTDREARKLGVGGELICEVW

Entity 9 Entity 9 polymer

Description description	30S ribosomal protein S9
Molecular weight formula_weight	14298.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	I

EQYYGTGRRKEAVARVFLRPGNGKVTVNGQDFNEYFQGLVRAVAALEPLRAVDALGRFDAYITVRGGGKSGQIDAIKLGIARALVQYNPDYRAKLKPLGFLTRDARVVERKKYGKHKARRAPQYSKR

Entity 10 Entity 10 polymer

Description description	30S ribosomal protein S10
Molecular weight formula_weight	11398.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J

KIRIKLRGFDHKTLDASAQKIVEAARRSGAQVSGPIPLPTRVRRFTVIRGPFKHKDSREHFELRTHNRLVDIINPNRKTIEQLMTLDLPTGVEIEIKTV

Entity 11 Entity 11 polymer

Description description	30S ribosomal protein S11
Molecular weight formula_weight	12606.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	K

KRQVASGRAYIHASYNNTIVTITDPDGNPITWSSGGVIGYKGSRKGTPYAAQLAALDAAKKAMAYGMQSVDVIVRGTGAGREQAIRALQASGLQVKSIVDDTPVPHNGCRPKKKFRKAS

Entity 12 Entity 12 polymer

Description description	30S ribosomal protein S12
Molecular weight formula_weight	14004.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L

PTINQLVRKGREKVRKKSKVPALKGAPFRRGVCTVVRTVTPKKPNSALRKVAKVRLTSGYEVTAYIPGEGHNLQEHSVVLIRGGRVKDLPGVRYHIVRGVYDAAGVKDRKKSRSKYGTKKPKEAAK

Entity 13 Entity 13 polymer

Description description	30S ribosomal protein S13
Molecular weight formula_weight	13753.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M

ARIAGVEIPRNKRVDVALTYIYGIGKARAKEALEKTGINPATRVKDLTEAEVVRLREYVENTWKLEGELRAEVAANIKRLMDIGCYRGLRHRRGLPVRGQRTRTNARTRKGPRKTVAGKKK

Entity 14 Entity 14 polymer

Description description	30S ribosomal protein S14
Molecular weight formula_weight	7027.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	N

ARKALIEKAKRTPKFKVRAYTRCVRCGRARSVYRFFGLCRICLRELAHKGQLPGVRKASW

Entity 15 Entity 15 polymer

Description description	30S ribosomal protein S15
Molecular weight formula_weight	10447.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	O

PITKEEKQKVIQEFARFPGDTGSTEVQVALLTLRINRLSEHLKVHKKDHHSHRGLLMMVGQRRRLLRYLQREDPERYRALIEKLGIRG

Entity 16 Entity 16 polymer

Description description	30S ribosomal protein S16
Molecular weight formula_weight	9995.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	P

MVKIRLARFGSKHNPHYRIVVTDARRKRDGKYIEKIGYYDPRKTTPDWLKVDVERARYWLSVGAQPTDTARRLLRQAGVFRQEA

Entity 17 Entity 17 polymer

Description description	30S ribosomal protein S17
Molecular weight formula_weight	11880.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Q

PKKVLTGVVVSDKMQKTVTVLVERQFPHPLYGKVIKRSKKYLAHDPEEKYKLGDVVEIIESRPISKRKRFRVLRLVESGRMDLVEKYLIRRQNYESLSKR

Entity 18 Entity 18 polymer

Description description	30S ribosomal protein S18
Molecular weight formula_weight	8155.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R

KAKVKATLGEFDLRDYRNVEVLKRFLSETGKILPRRRTGLSAKEQRILAKTIKRARILGLLPFTEKLVRK

Entity 19 Entity 19 polymer

Description description	30S ribosomal protein S19
Molecular weight formula_weight	9006.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	S

SLKKGVFVDDHLLEKVLELNAKGEKRLIKTWSRRSTIVPEMVGHTIAVYNGKQHVPVYITENMVGHKLGEFAPTRTYRG

Entity 20 Entity 20 polymer

Description description	30S ribosomal protein S20
Molecular weight formula_weight	10921.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	T

RNLSALKRHRQSLKRRLRNKAKKSAIKTLSKKAIQLAQEGKAEEALKIMRKAESLIDKAAKGSTLHKNAAARRKSRLMRKVRQLLEAAGAPLIGGGLSA

Entity 21 Entity 21 polymer

Description description	30S ribosomal protein THX
Molecular weight formula_weight	3089.7 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	U

GKGDRRTRRGKIWRGTYGKYRPRKK

Entity 22 Entity 22 polymer

Description description	mRNA
Molecular weight formula_weight	1571.0 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	X

UAGUA

Entity 23 Entity 23 polymer

Description description	RNA-ASL
Molecular weight formula_weight	3477.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	Y

AUUIGAAAUCU

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6. Fold Classification (SCOP + CATH) 25 domains

CATH v4.4 (25 domains)

Domain ID domain_id	4k0kB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10490 — Glucose-6-phosphate isomerase like protein; domain 1

Domain ID domain_id	4k0kB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	610 — Helix hairpin bin

Domain ID domain_id	4k0kC01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	20 — K homology (KH) domain

Domain ID domain_id	4k0kC02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1140 — Ribosomal protein S3 C-terminal domain
Homologous superfamily homologous superfamily	32 — Ribosomal protein S3, C-terminal domain

Domain ID domain_id	4k0kD01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1050 — Ribosomal Protein S4 Delta 41; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Ribosomal protein S4/S9, N-terminal domain

Domain ID domain_id	4k0kD02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	290 — Structural Genomics Hypothetical 15.5 Kd Protein In mrcA-pckA Intergenic Region; Chain A
Homologous superfamily homologous superfamily	10 — RNA-binding S4 domain

Domain ID domain_id	4k0kE01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	160 — Double Stranded RNA Binding Domain
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	4k0kE02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	230 — Ribosomal Protein S5; domain 2
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	4k0kF00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	60 — Ribosomal protein S6/Translation elongation factor EF1B

Domain ID domain_id	4k0kG00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	455 — Ribosomal Protein S7
Homologous superfamily homologous superfamily	10 — Ribosomal protein S7/S5

Domain ID domain_id	4k0kH01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1370 — Ribosomal Protein S8; Chain: A, domain 1
Homologous superfamily homologous superfamily	30 —

Domain ID domain_id	4k0kH02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	4k0kI00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	230 — Ribosomal Protein S5; domain 2
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	4k0kJ00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	600 — Ribosomal protein S10

Domain ID domain_id	4k0kK00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	80 — Ribosomal protein S11/S14

Domain ID domain_id	4k0kL00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	140 — Nucleic acid-binding proteins

Domain ID domain_id	4k0kM01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	4k0kM02
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	910 — 30s ribosomal protein s13; domain 2
Homologous superfamily homologous superfamily	10 — Ribosomal protein S13/S18, C-terminal domain

Domain ID domain_id	4k0kN00
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	830 — 30s Ribosomal Protein S14; Chain N
Homologous superfamily homologous superfamily	10 — Ribosomal Protein S14/S29

Domain ID domain_id	4k0kO00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	287 — Helix Hairpins
Homologous superfamily homologous superfamily	10 — S15/NS1, RNA-binding

Domain ID domain_id	4k0kP00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1320 — S16 Ribosomal Protein; Chain: A;
Homologous superfamily homologous superfamily	10 — Ribosomal protein S16

Domain ID domain_id	4k0kQ00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	140 — Nucleic acid-binding proteins

Domain ID domain_id	4k0kR00
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	640 — 30s Ribosomal Protein S18
Homologous superfamily homologous superfamily	10 — Ribosomal protein S18

Domain ID domain_id	4k0kS00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	860 — 30s Ribosomal Protein S19; Chain A
Homologous superfamily homologous superfamily	10 — Ribosomal protein S19/S15

Domain ID domain_id	4k0kT00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	110 — Ribosomal protein S20

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Unit-cell length a length_a	401.300 Å
Unit-cell length b length_b	401.300 Å
Unit-cell length c length_c	173.680 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	3.400 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.1900
R_work r_work	0.1873
R_free r_free	0.2418

Crystal structure of the Thermus thermophilus 30S ribosomal subunit complexed with a serine-ASL and mRNA containing a stop codon

1. Protein Identity and Related Structures Protein Identity & Related Structures

30S ribosomal protein S2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S3

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S5

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S6

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S7

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S8

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S9

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S10

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S11

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer